TCRY - Yakima River Bridge (Benton County, Washington)Trusses built 1899 at another location, through girders built elsewhere 1910; Relocated 1950Triple Intersection Warren lattice through truss bridge over Yakima River on Tri-City & Olympia RailroadOpen to traffic

Tecumseh Street Bridge (Allen County, Indiana)Built 1913Concrete arch bridge over Maumee River on Tecumseh Street in Fort WayneOpen to traffic

Ted Williams Tunnel (Suffolk County, Massachusetts)Built 1991-1995; opened to traffic in 2003 due to post-construction issuesTunnel under Boston Harbor on Interstate 90/Massachusetts TurnpikeOpen to traffic

Teilbur Bridge (Clay County, Iowa)Built 1907 by the Clinton Bridge & Iron Works, rebuilt in 1991 after an accident destroyed the south approach span.Through truss bridge over Little Sioux River on 240th Avenue/470th Street east of US 71Open to one-lane traffic with a weight limit

Tekamah Creek Bridge (Burt County, Nebraska)Built 1962Pony truss bridge over Tekamah Creek on a CR-32, 1.5 mi. west of TekamahOpen to traffic

Ten Mile Creek Bridge (Shelby County, Missouri)Built 1932, This bridge was last painted in 1964 - using the then novel method of powder coating.Steel stringer bridge over Ten Mile Creek on State Route 151Open to traffic (but slated for replacement)

Ten Mile River Bridge (Mendocino County, California)Built 1954, replaced 2009Beam bridge over Ten Mile River on State Route 1Open to traffic

Tesshire Drive Gravois Creek Bridge (St. Louis County, Missouri)Built 1933 by the Missouri State Highway Department; made obsolete by a new Route 21 bridge in 1969 on a new alignmentConcrete tee beam bridge over Gravois Creek on Tesshire DriveOpen to traffic

Teton River Bridge (Teton County, Montana)Built 1939; rehabilitated 1965Warren pony truss bridge over Teton River on US 89Open to traffic

Texas Creek Bridge (Fremont County, Colorado)Built 1907 by the Pueblo Bridge Co.Pony truss bridge over Arkansas River on CR 27 at Texas CreekOpen to traffic

Texas Street Bridge (Bossier Parish, Louisiana)Opened to traffic on October 22, 1933; rehabilitated 1984Cantilevered through truss bridge over Red River on US 79/US 80 in ShreveportOpen to four-lane traffic

Thayer Viaduct (Oregon County, Missouri)Built 1930 by M.S. Cartter & Co. of St. LouisThrough truss bridge over the BNSF railroad and Two Mile Creek on MO 19/Business US 63 in ThayerOpen to two-lane traffic

The Arches (Vermilion County, Illinois)Built 1905Concrete arch bridge over Salt Fork Vermilion River on CSX Transportation southwest of DanvilleOpen to traffic

The Arches Railroad Bridge (Winona County, Minnesota)Built 1882Stone arch bridge over County Road 120 and Francis Creek on DM&E RailroadOpen to traffic

The Clinchfield Loops - A: Ridge Tunnel (Mitchell County, North Carolina)Built as part of the S & W's Altapass to Marion segment; rehabilitated 1958. The following tunnels are labeled beginning with "A" as the line descends the Blue Ridge.Tunnel under Blue Ridge, Eastern Continental Divide on Clinchfield Railroad (now CSX)Open to traffic

The Clinchfield Loops - D: 1st Washburn Tunnel (McDowell County, North Carolina)1st Washburn Tunnel is the 41st tunnel on the historic Clinchfield Railroad, and 4th on the descent of the railroad down the Blue Ridge to Ashford, NCTunnel under Washburn Ridge on Clinchfield Railroad (now CSX)Open to traffic

The Clinchfield Loops - E: 2nd Washburn Tunnel (McDowell County, North Carolina)Built as part of the S & W's Altapass to Marion segment; north end rehabilitated 1925, south end rehabilitated 1913Tunnel under Washburn Ridge on Clinchfield Railroad (now CSX)Open to traffic

The Clinchfield Loops - F: Quinn Knob Tunnel (McDowell County, North Carolina)Quinn Knob Tunnel is the 6th tunnel on the Clinchfield Railroad's historic 'Loops' line descending the Blue Ridge, and is the 43rd tunnel on the line built from Elkhorn City, KY to Spartanburg, SCTunnel under Quinn;s Knob Ridge, an offshoot of Washburn Ridge on Clinchfield Railroad (now CSX)Open to traffic

The Clinchfield Loops - G: 3rd Washburn Tunnel (McDowell County, North Carolina)The third in a series of tunnels that surround Washburn Ridge, in the Clinchfield Railroad's historic descent from the Blue Ridge to the Atlantic coast , tunnel rehabilitated 1913Tunnel under Washburn Ridge on Clinchfield Railroad (now CSX)Open to traffic

The Clinchfield Loops - J: Speedy Tunnel (McDowell County, North Carolina)Built as part of the S & W's Altapass to Marion segment; rehabilitated 1914Tunnel under Short Extension of the Blue Ridge on Clinchfield Railroad (now CSX)Open to traffic

The Clinchfield Loops - L: Bird Ridge Tunnel (McDowell County, North Carolina)Built as part of the S & W's Altapass to Marion segment; rehabilitated 1914Tunnel under Bird Ridge on Clinchfield Railroad (now CSX)Open to traffic

The Dalles Bridge (Wasco County, Oregon)Built 1954Through truss bridge over Columbia River on US 197 in The DallesOpen to traffic

The Five Shovelmen Bridge (Monroe County, Wisconsin)The bridge groundbreaking was on Dec 9, 2015. It was constructed entirely by volunteers known as the Five Shovelmen. The bridge has its origins in a Conditional Use Permit agree to by US Silica and the City of Sparta.Modern bowstring through truss bridge over LaCrosse River on Pedestrians and BicyclesOpen to traffic. Dedicated September 20, 2016

The Pointe Covered Bridge 49-42-c (Monroe County, Wisconsin)built to replace a bridge in the same locationMultiple Kingpost through truss bridge over Beaver Creek on Park vehicles, Bikes, snowmobiles and pedestriansExcellent

The Wood Bridge (Davis County, Iowa)Timber stringer bridge over Bear Creek on 130th StOpen to traffic

Thebes Bridge (Alexander County, Illinois)Built 1905 by a consortium of five railroad companies (CEI, IC, MP, StLIM&S, SSW)Cantilevered through truss railroad bridge over the Mississippi River at ThebesOpen to railroad traffic on two tracks

Theodore Roosevelt Bridge (Arlington County, Virginia)Built 1962Girder bridge over Potomac River on I-66/US-50Open to traffic

Theodosia Bridge (Ozark County, Missouri)Built 1951-52; Refurbished 2016Ten-span through truss bridge over Little North Fork White River (arm of Bull Shoals Lake) on US 160 near TheodosiaOpen to two-lane traffic

Third Avenue Bridge (New York County, New York)Built 1900; rehabilitated 1957; Replaced 2005Swing bridge over Harlem River on Third Avenue in New YorkOpen to traffic

Third River Bridge (Essex County, New Jersey)Built 1895; rehabilitated 1965Stone arch bridge over Third River on Centre Street (CR 648) in NutleyOpen to traffic

Third Street Arch Bridge (Allen County, Ohio)Built 1912Arch bridge over Flat Fork Creek on Third Street in DelphosOpen to traffic

Third Street Bridge (Tazewell County, Illinois)Built 1907 by the Kellogg Bridge Co.Pony truss bridge over City Park on Third Street in DelavanOpen to traffic

Third Street Bridge (Ottawa County, Kansas)Built 1915Concrete arch bridge over Pipe Creek on 3rd Street in MinneapolisOpen to traffic

Third Street Bridge (Goodhue County, Minnesota)Built 1909 by A.Y. Bayne & Co. of Minneapolis and Louis P. Wolff, engineerThrough truss bridge over Cannon River on Third Street in Cannon FallsOpen to one-lane traffic

Third Street Bridge (Kings County, New York)Built 1903; rehabilitated 1954Bascule bridge over Gowanus Canal on 3rd Street in New YorkOpen to traffic

Third Street Bridge (Napa County, California)Built 2002, replaces previous bridge of unknown yearBeam bridge over Napa River on Third Street in NapaOpen to traffic